Jing Zhang

This paper examines the spillover effect between bitcoin, gold, crude oil, and major stock markets by using the MSV model with dynamic correlation and Granger causality. The empirical results of the DC-GC-MSV model are logically correct and convergent. The DIC test result has proved that the DC-GC-MSV model is better and more accurate. Bitcoin has no significant Granger causality spillover effect than other assets. As a safe haven product for stock assets, gold price has one-way spillover effect from stock market volatility. Moreover, crude oil has the highest correlation with the stock market. In the recent COVID-19 epidemic and the sluggish economic environment, investors need to consider a balanced asset allocation among low-correlation assets, medium-correlation assets, and high-correlation assets to reduce risks.

BackgroundPublic health guidelines have recommended that elective medical procedures, including deep brain stimulation surgery for Parkinson’s disease, should not be scheduled during the coronavirus pandemic to prevent further virus spread and overload on health care systems. However, delaying DBS surgery for PD may not be in the best interest of individual patients and is not called for in regions where virus spread is under control and inpatient facilities are not overloaded.MethodsWe administered a newly developed phone questionnaire to 20 consecutive patients with PD who received DBS surgery in Ruijin Hospital in Shanghai during the COVID-19 pandemic. The questionnaire was designed to gather the patients’ experiences and perceptions on the impact of COVID-19 on their everyday activities and access to medical care.ResultsMost of the patients felt confident about the preventive measures taken by the government and hospitals, and they have changed their daily living activities accordingly. Moreover, a large majority of patients felt confident obtaining access to regular and COVID-19-related health care services if needed. Routine clinical referral, sense of security in the hospital during the outbreak, and poor control of PD symptoms were the three main reasons given by patients for seeking DBS surgery during the COVID-19 pandemic.ConclusionThe COVID-19 pandemic has considerably impacted medical care and patients’ lives but elective procedures, such as DBS surgery for PD, do not need to be rescheduled when the health care system is not overloaded and adequate public health regulations are in place.

This study describes the results of interventions with the Konstanz Method of Dilemma Discussion by Georg Lind, with 89 economics undergraduate participants sampled from Guangdong province. The participants’ mean C-score in the Moral Judgment Test increased only a little because of the teacher’s little experience in using KMDD, but otherwise the intervention produced good results: the participants showed great interest in KMDD although this teaching method is very different from the typical Chinese teaching, and they enjoyed the KMDD-sessions and the classroom atmosphere created through it. Students’ feedback will be useful for future application and research on KMDD in China.

Public and experts’ perceptions of benefits and risks of nanotechnology constitute an important element of nanoethics studies. On the one hand, compared with traditional ethics, nanoethics is a future-oriented ethics. The construction of ethical norms requires public participation. On the other hand, nanotechnology is characterized by uncertainty. Our previous research showed the Chinese public’s support for nanotechnology was associated more with beliefs, including views of technology and the weighing of benefits and risks of nanotechnology, and less with knowledge about nanotechnology; the support was high but might change over time. Meanwhile, Chinese researchers have been actively conducting studies on nanotechnology while being highly aware of nanosafety issues. In this context, we further examined in the present study Chinese nanoresearchers’ perceptions of specific benefits and risks of nanotechnology, compared them with those of the Chinese public, and examined the Chinese nanoresearchers’ perceptions of risks of specific nanoapplications. Initial cross-regional comparisons were made with results from equivalent US and European surveys. Results showed Chinese nanoresearchers perceived a higher level of overall nanobenefits than the public and an almost equal level of overall nanorisks with the public. Four nanorisks were perceived by a higher proportion of experts than public; the experts likely relied on technical expertise while the public, possessing little knowledge about nanotechnology, might have exercised caution based on experiences and observations of other technologies. Of 23 nanoapplications, Chinese nanoresearchers regarded food using nanomaterials as the most risky and displays using nanomaterials as the least risky. Similarities and differences were observed in comparisons of Chinese with US and European survey results. In our age of technology and economic globalization, this research is of significance both for China’s formulation of nanotechnology development strategies and for the further study on nanoethics and good governance of emerging technologies such as nanotechnology worldwide.

This paper is concerned with the multivariate stochastic volatility modeling of the stock market. We investigate a DGC-t-MSV model to find the historical volatility spillovers between nine markets, including S&P, Nasdaq, SSE, SZSE, HSI, FTSE, CAC, DAX, and Nikkei indices. We use the Bayesian network to analyze the spreading of herd behavior between nine markets. The main results are as follows: the DGC-t-MSV model we considered is a useful way to estimate the parameter and fit the data well in the stock market; our computational analysis shows that the S&P and Nasdaq have higher volatility spillovers to the Shanghai and Shenzhen stock markets; the results also show that there is a strong correlation between stock markets in the same region.

In sprint track events, the starting reaction time is an important professional capacity of the athletes, and it is closely related to their performance. This study examines the reaction time and the results of the male and female sprinters participating in the World Athletics Championships from 2011 to 2019 in the 100 m, 200 m, 100 m, and 110 m hurdles. The researchers used least squares estimation, multivariate analysis of variance, and other methods and theories to construct a double logarithmic model and a multivariate analysis of a variance model. The researchers used Econometrics Views and SPSS software programs to analyze the correlation between the performance and the starting reaction time, as well as the patterns in the changes of the reaction time of athletes of both genders in different types of and rounds in the competitions. Research results show that there is a direct correlation between the reaction time and the performance, and the degrees of correlation vary depending on the gender of the athlete, year of competition, type of competition, and round of competition. There is a correlation between the foul types and the type of competition, but there is no correlation between foul types and the gender of the athlete. The research results are science-based and are of practical value and thus can be used as a reference by coaches in sprint running to offer more professional guidance to the athletes.

Edited by Manos Tsakiris and Helena De Preester, (Oxford, Oxford University Press), 2019, 368 pages,To understand the nature of mind, cognitive scientists of all theoretical strands may benefit from considering experimental evidence of cognition (perception, attention, memory, etc.) alongside phenomenologies of (conscious) experiences and feelings-let's say, proprioceptive, exteroceptive, interoceptive, and bodily self-conscious. Roughly, the former dimension of scientific studies of mind seems to have found its legitimacy; however, at least, at first sight, the latter could still not be exonerated completely. That is to say, as far as the scientifically evidence-based account of interoception is concerned, we will have come a long way towards buttressing its legitimacy. The Interoceptive Mind: From Homeostasis to Awareness (Tsakiris and De Preester, 2019) would be seen as a guide to scientific studies of interoception in all of the cases so far. In particular, the essays collected in this book shed light on multisensory integrations of interoceptive and exteroceptive feelings (and even self-conscious feelings) across widespread disciplines.As suggested in its title, the book addresses the difficulties of integrating various dimensions relevant to feelings-from the biological notion of self to the interoceptive origin of self-awareness. The book divides into four sections, and each chapter is worthy of careful attention.Part I, i.e., the first chapter introduces the histor...

The classical Halpern–Läuchli theorem states that for any finite coloring of a finite product of finitely branching perfect trees of height ω, there exist strong subtrees sharing the same level set such that tuples in the product of the strong subtrees consisting of elements lying on the same level get the same color. Relative to large cardinals, we establish the consistency of a tail cone version of the Halpern–Läuchli theorem at a large cardinal (see Theorem 3.1), which, roughly speaking, deals with many colorings simultaneously and diagonally. Among other applications, we generalize a polarized partition relation on rational numbers due to Laver and Galvin to one on linear orders of larger saturation.

For achieving the sustainable development goals, green development has been raised to a high position for cities in China. The economic development in Northwest China is slow, the ecological environment is fragile, and the mineral resources are rich. Only through green development can we realize the comprehensive income of regional production development, rich life, and good ecology. This paper measures the green development efficiency of 30 prefecture-level cities in Northwest China by using DEA-SBM model of unexpected output, explores the differences and causes of green development efficiency from the perspective of time and space through convergence coefficient, coordination matrix, GIS, and other methods, and empirically tests the impact of industrial structure, technological progress, and other driving factors on green development efficiency by using panel Tobit model. The results show that, on the whole, the efficiency of green development in Northwest China is low, path dependence is serious and unbalanced, the coordinated development effect of different regions is weak, and the spillover effect of core urban agglomerations has not been effectively exerted; from the perspective of driving factors, economic development, population density, traffic situation, and education investment can significantly improve the efficiency of urban green development, and the second is that the proportion of industries significantly hinders the improvement of green development efficiency, while the impact of scientific and technological innovation is not significant. Based on the empirical results, this paper believes that the harmonious development of natural environment and economic society can be realized only by improving the coordinated development effect among cities, implementing the optimization and upgrading of industrial structure, introducing excellent talents, and promoting the technological upgrading.

Individuals often fail to accurately predict others’ decisions in a risky environment. In this paper, we investigate the characteristics and causes of this prediction discrepancy. Participants completed a risky decision-making task mixed with different domains (gain vs. loss) and probabilities (small vs. large), with some participants making decisions for themselves (the actor) and the others predicting the actors’ decisions (the predictor). The results demonstrated a prediction discrepancy: predictions were more risk-averse than the actual decisions over small-probability gains and more risk-seeking over large-probability gains, while these patterns were reversed in the loss domain. Reported and predicted levels of emotional stimulation revealed a pattern that is consistent with the notion of risk-as-feelings and empathy gaps. Mediation analysis provided strong evidence that such prediction discrepancy is driven mainly by the predictor’s underestimate of the intensity (not the impact) of the actor’s emotional state.

We study algorithmic randomness notions via effective versions of almost-everywhere theorems from analysis and ergodic theory. The effectivization is in terms of objects described by a computably enumerable set, such as lower semicomputable functions. The corresponding randomness notions are slightly stronger than Martin–Löf randomness.We establish several equivalences. Given a ML-random realz, the additional randomness strengths needed for the following are equivalent.all effectively closed classes containingzhave density 1 atz.all nondecreasing functions with uniformly left-c.e. increments are differentiable atz.zis a Lebesgue point of each lower semicomputable integrable function.We also consider convergence of left-c.e. martingales, and convergence in the sense of Birkhoff’s pointwise ergodic theorem. Lastly, we study randomness notions related to density of${\rm{\Pi }}_n^0$and${\rm{\Sigma }}_1^1$classes at a real.

According to conceptual metaphor theory, individuals are thought to understand or express abstract concepts by using referents in the physical world—right and left for moral and immoral, for example. In this research, we used a modified Stroop paradigm to explore how abstract moral concepts are metaphorically translated onto physical referents in Chinese culture using the Chinese language. We presented Chinese characters related to moral and immoral abstract concepts in either non-distorted or distorted positions or rotated to the right or to the left. When we asked participants to identify the Chinese characters, they more quickly and accurately identified morally positive characters if they were oriented upright or turned to the right and more quickly and accurately identified immoral characters when the characters were distorted or rotated left. These results support the idea that physical cues are used in metaphorically encoding social abstractions and moral norms and provided cross-cultural validation for conceptual metaphor theory, which would predict our results.

Modernization is the common pursuit of human society, and culture, especially the advanced culture of choice determines the direction of modernization. Advanced culture is all the fine blend of history and culture, the crystallization of human civilization, is the sublimation of the spirit of the times, is the modernization and social development, cohesion and internal thrust. The proletariat as a ruling party, the ability to choose the guidelines of advanced culture and always represent the forward direction, determine their own country and the nation's rise and fall. History shows that the selection and modern culture to grasp the relationship between the grasp of understanding of China's modernization, "the main line." Prosperity in the 21st century socialist advanced culture, and thus China's modernization drive, we must correctly grasp of Marxism in China's advanced culture and the relationship between several aspects of selection, with the developing Marxism to promote China's modernization. Modernization is the common target of the human beings, however, the culture selection especially the advanced culture selection takes the key role for the direction of the modernization. The advanced culture, as the assembly of all excellent historical cultures, is the cohesive and promoting force of the modernization construction and social development. The Communist Party as the proletariat ruling party will determine its, the country and the nations' rise and decline whether to select the advanced culture as the guide for going forward. It has been proved to grasp the relations between the selection of culture and modernization, then to take the "main line" of China modernization, so it is necessary to push on Chinese modernization with the advanced culture Marxism

We study the structural rainbow Ramsey theory at uncountable cardinals. Compared to the usual rainbow Ramsey theory, the variation focuses on finding a rainbow subset that not only is of a certain cardinality but also satisfies certain structural constraints, such as being stationary or closed in its supremum. In the process of dealing with cardinals greater than ω1, we uncover some connections between versions of Chang's Conjectures and instances of rainbow Ramsey partition relations, addressing a question raised in [18].

Errors are inevitable in an increasingly risky and dynamic entrepreneurial environment. The error management and the error climate perceived by the members are crucial to the subsequent innovation behaviors. Maintaining and improving the psychological capital of entrepreneurs under errors is not only the psychological activities of entrepreneurs themselves but also a critical management process in which an organization can influence the psychological factors and behaviors of entrepreneurs through error management climate. In the context of Chinese culture, this study explores the influence of error management climate on entrepreneurial self-efficacy and innovation behavior under the boundary condition of Zhongyong thinking. Two hundred ninety samples of Chinese entrepreneurs are empirically analyzed in this study, and results show that: error management climate and entrepreneurial self-efficacy have significant positive effects on entrepreneurs’ innovation behavior; entrepreneurial self-efficacy mediates the relationship between error management climate and innovation behavior; and Zhongyong thinking plays moderating roles in the process of error management climate influencing innovation behavior. This study complements the entrepreneurship literature with its focus on error management climate as an essential antecedent of entrepreneurial self-efficacy, and promotes an understanding of how Chinese practitioners promote innovative behavior from a cultural perspective.